[gentoo-catalyst] Doc Question about CD Overlays

[gentoo-catalyst] Doc Question about CD Overlays

[Jackass Project]

Hi.  I would like to thank the developers and support staff for Catalyst
for all of their efforts in updating and supporting this valuable tool.

I have a question about the implementation of overlays which I haven't
been able to answer by reading the ebuild warnings, the example spec
files, the example spec file templates, and the deprecated web page
documentation.  I'm hoping that you can answer this question for me.

I am capable of successfully building a Live CD using a variety of the
CD spec files without any problems.  I would like to add some files
to the "/" directory of the Live CD, including a tarball and a portage
snapshot.  My question is how I should do this.

I have tried using the "overlay" and the "root_overlay" specifications
(without success), such as the following:

> > livecd/root_overlay: /var/tmp/overlay
> > livecd/overlay: /var/tmp/overlay

I have populated the /var/tmp/overlay directory with the tarball and the
portage snapshot that I would like to be overlaid to the "/" directory
on the Live CD, and the permissions on the directory and the files are
permissive for all users.

I have tried using the gentoo-release-minimal, gentoo-release-universal,
and generic-livecd livecd types, and achieved the same result with each
one:  when the overlay is specified in the spec file, the size of the
.ISO image increases appropriately (suggesting that the desired overlay
files were actually included in the Live CD build), but the files are
not visible on the booted Live CD.  That is to say, once the Live CD is
booted, I cannot find the files in ANY of the directories accessible
within the Live CD booted environment.

Am I just not looking in the right place?  Where are the files supposed
to be located on the Live CD when the livecd/root_overlay and the
livecd/overlay specifications are used?  They're not in "/" or in any of
its subfolders.

I also have to confess that after reading the deprecated web page
documentation, the difference between livecd/root_overlay and
livecd/overlay is still somewhat vague to me.

thanks.

Bob
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Re: [gentoo-catalyst] Doc Question about CD Overlays

[Chris Gianelloni]

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On Wed, 2006-05-17 at 15:10 -0500, Jackass Project wrote:
> I also have to confess that after reading the deprecated web page
> documentation, the difference between livecd/root_overlay and
> livecd/overlay is still somewhat vague to me.

Well, livecd/overlay is for things *outside* the booted CD.  They will
still be available under /mnt/cdrom, however.

Things in livecd/root_overlay are placed directly over the root
file-system of the booted CD.

Also, if you aren't using catalyst 2.0_rc*, switch now.  =]

-- 
Chris Gianelloni
Release Engineering - Strategic Lead
x86 Architecture Team
Games - Developer
Gentoo Linux

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Re: [gentoo-catalyst] Doc Question about CD Overlays

[Bob Predaina]

Chris Gianelloni wrote:
> On Wed, 2006-05-17 at 15:10 -0500, Jackass Project wrote:
>> I also have to confess that after reading the deprecated web page
>> documentation, the difference between livecd/root_overlay and
>> livecd/overlay is still somewhat vague to me.
> 
> Well, livecd/overlay is for things *outside* the booted CD.  They will
> still be available under /mnt/cdrom, however.
> 
> Things in livecd/root_overlay are placed directly over the root
> file-system of the booted CD.
> 
> Also, if you aren't using catalyst 2.0_rc*, switch now.  =]

Thanks for the prompt reply.  I am using 2.0 rc45.

livecd/overlay does indeed put the overlay files in /mnt/cdrom/*  thanks.

livecd/root_overlay doesn't seem to be working.  although the size of
the .ISO is increased appropriately, I still can't find the files.  If
they're supposed to be in "/" on the Live CD, then something is amiss
because they don't appear to be visible.

do you have any suggestions?
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Re: [gentoo-catalyst] Doc Question about CD Overlays

[Chris Gianelloni]

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On Wed, 2006-05-17 at 19:34 -0500, Bob Predaina wrote:
> 
> Chris Gianelloni wrote:
> > On Wed, 2006-05-17 at 15:10 -0500, Jackass Project wrote:
> >> I also have to confess that after reading the deprecated web page
> >> documentation, the difference between livecd/root_overlay and
> >> livecd/overlay is still somewhat vague to me.
> > 
> > Well, livecd/overlay is for things *outside* the booted CD.  They will
> > still be available under /mnt/cdrom, however.
> > 
> > Things in livecd/root_overlay are placed directly over the root
> > file-system of the booted CD.
> > 
> > Also, if you aren't using catalyst 2.0_rc*, switch now.  =]
> 
> Thanks for the prompt reply.  I am using 2.0 rc45.
> 
> livecd/overlay does indeed put the overlay files in /mnt/cdrom/*  thanks.
> 
> livecd/root_overlay doesn't seem to be working.  although the size of
> the .ISO is increased appropriately, I still can't find the files.  If
> they're supposed to be in "/" on the Live CD, then something is amiss
> because they don't appear to be visible.
> 
> do you have any suggestions?

Could be a bug, but I use this functionality myself and can guarantee
you that it is working.  What's your file layout look like for that
directory?

-- 
Chris Gianelloni
Release Engineering - Strategic Lead
x86 Architecture Team
Games - Developer
Gentoo Linux

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Re: [gentoo-catalyst] Doc Question about CD Overlays

[Bob Predaina]

Chris Gianelloni wrote:

>> livecd/root_overlay doesn't seem to be working.  although the size of
>> the .ISO is increased appropriately, I still can't find the files.  If
>> they're supposed to be in "/" on the Live CD, then something is amiss
>> because they don't appear to be visible.
>>
>> do you have any suggestions?
> 
> Could be a bug, but I use this functionality myself and can guarantee
> you that it is working.  What's your file layout look like for that
> directory?

1.  which directory should i find the files in?  i'm expecting to find
the files on the live cd in "/"

2.  here's my config info:

a. from the stage2 spec file:

> livecd/root_overlay: /var/tmp/catalyst2/overlay/p3

b. from the PC running catalyst2:

# vdir /var/tmp/catalyst2/overlay/p3
total 131448
-rw-r--r-- 1 root root 106933099 Apr 21 11:27
jackass-2006.1-pentium3.tar.bz2
-rw-r--r-- 1 root root        66 Apr 21 11:27
jackass-2006.1-pentium3.tar.bz2.md5
-rw-r--r-- 1 root root  27527053 May  6 20:58 portage-20060506.tar.bz2
-rw-r--r-- 1 root root        59 May  6 20:59
portage-20060506.tar.bz2.md5sum

3.  If I need to look at the scripts, can you point me to the right
moudule?

Thanks.
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